Dixons did sell a pack of international telephone converters at one time so they do exist. If you are in Spain at the moment, that's not much help but, can you try a Spanish computer shop/ telephone shop of something like that?
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This poetic animation about monsters is illustrated in a Van Gogh painterly style
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Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.